国际顶尖MBA申请交流平台--TOPWAY MBA

标题: prep 2-ds- 109 [打印本页]

作者: luckytu 时间: 2009-1-20 18:05 标题: prep 2-ds- 109

Marta bought several pencils. If each pencil was either a 23-cent pencil or a 21-cent pencil, how many 23-cent pencils did Marta buy?

(1) Marta bought a total of 6 pencils.

(2) The total value of the pencils Marta bought was 130 cents.

作者: waterpoo 时间: 2009-1-21 13:45

答案是不是B？花130块买2种铅笔貌似只有一种买法：2根23的4根21的。

作者: xp635 时间: 2009-2-1 21:27

楼上正解

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